我正在使用指纹sdk，它始终会崩溃。
java.lang.RuntimeException: Failed to init Cipher
at com.example.ammar.fingerbyitself.MainActivity.initCipher(MainActivity.java:160)
at com.example.ammar.fingerbyitself.MainActivity.access$000(MainActivity.java:55)
at com.example.ammar.fingerbyitself.MainActivity$1.onClick(MainActivity.java:109)
at android.view.View.performClick(View.java:5697)
at android.widget.TextView.performClick(TextView.java:10814)
at android.view.View$PerformClick.run(View.java:22526)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7229)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
Caused by: java.security.InvalidKeyException: Only SecretKey is supported
at com.android.org.conscrypt.OpenSSLCipher.checkAndSetEncodedKey(OpenSSLCipher.java:435)
at com.android.org.conscrypt.OpenSSLCipher.engineInit(OpenSSLCipher.java:260)
at javax.crypto.Cipher.tryTransformWithProvider(Cipher.java:612)
at javax.crypto.Cipher.tryCombinations(Cipher.java:532)
at javax.crypto.Cipher.getSpi(Cipher.java:437)
at javax.crypto.Cipher.init(Cipher.java:815)
at javax.crypto.Cipher.init(Cipher.java:774)
at com.example.ammar.fingerbyitself.MainActivity.initCipher(MainActivity.java:153)
at com.example.ammar.fingerbyitself.MainActivity.access$000(MainActivity.java:55)
at com.example.ammar.fingerbyitself.MainActivity$1.onClick(MainActivity.java:109)
at android.view.View.performClick(View.java:5697)
at android.widget.TextView.performClick(TextView.java:10814)
at android.view.View$PerformClick.run(View.java:22526)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7229)
at java.lang.reflect.Method.invoke(Native Method)
当我调用CIPHERinit()
private boolean initCipher() {
try {
// KeyStore mKeyStore = KeyStore.getInstance("AndroidKeyStore");
mKeyStore.load(null);
SecretKey key = (SecretKey) mKeyStore.getKey(KEY_NAME, null);
mCipher.init(Cipher.ENCRYPT_MODE, key);
return true;
} catch (KeyPermanentlyInvalidatedException e) {
return false;
} catch (KeyStoreException | CertificateException | UnrecoverableKeyException | IOException
| NoSuchAlgorithmException | InvalidKeyException e) {
throw new RuntimeException("Failed to init Cipher", e);
}
}
它崩溃的原因还不清楚，即使从GitHub下载相同的代码也可以正常工作。
最佳答案
在FingerPrintDialog示例中，有一个createKey方法生成密钥。仅调用createKey后，您可以调用initCipher